2-Chloro-1,3,2-oxazaphosphinane 2-oxide CAS 5638-58-4
| CAS No. | 5638-58-4 |
| Molecular Formula | C3H7ClNO2P |
| Molecular Weight | 155.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 155.52 g/mol gives 2-Chloro-1,3,2-oxazaphosphinane 2-oxide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-Chloro-1,3,2-oxazaphosphinane 2-oxide (CAS 5638-58-4), a certified reference material (molecular formula C3H7ClNO2P, MW 155.52 g/mol) for analytical method development and quality control.
The molecular framework of 2-Chloro-1,3,2-oxazaphosphinane 2-oxide (C3H7ClNO2P) is characterized by an amide group, organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C3H7ClNO2P |
| Molecular Weight | 155.52 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.5 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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- 3-Chloro-N-(1H-indazol-6-yl)propane-1-sulfonamide (CAS 1092345-50-0)
- Semaglutide Impurity 75 (CAS CATO-C4X-2226175)
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